You know you can use old quill stems as bottle openers. A while ago I saw some video of the TDF where people , mid ride, would take out bottles from their food sacks and tap the caps on the stem bolt. Well I tried it and it works really well! I can't find the video though

That's badass, but I have too many bottle openers. My Chrome bag has one, my multi tool has one, my Pedro's Trixie has one, and my bike counts as one.